[PATCH] malloc: Remove check_action variable [BZ #21754]

[Florian Weimer]

On 08/31/2017 05:55 AM, H.J. Lu wrote:

> One of malloc change caused:
> 
> https://sourceware.org/bugzilla/show_bug.cgi?id=22052

(uninit warning with -O3)

I have not yet found a good way to suppress this. I don't know yet why
GCC loses the information that the maybe_p variable is initialized if
mem2chunk_check returns a non-null pointer.

Thanks,
Florian